Advances in Digital Processing of Low-Amplitude Components of Electrocardiosignals

This manual has been published within the framework of the BME-ENA project under the responsibility of National Technical University of Ukraine. The BME-ENA “Biomedical Engineering Education Tempus Initiative in Eastern Neighbouring Area”, Project Number: 543904-TEMPUS-1-2013-1-GR-TEMPUS-JPCR is a Joint Project within the TEMPUS IV program. This project has been funded with support from the European Commission.Навчальний посібник присвячено розробці методів та засобів для неінвазивного виявлення та дослідження тонких проявів електричної активності серця. Особлива увага приділяється вдосконаленню інформаційного та алгоритмічного забезпечення систем електрокардіографії високого розрізнення для ранньої діагностики електричної нестабільності міокарда, а також для оцінки функціонального стану плоду під час вагітності. Теоретичні основи супроводжуються прикладами реалізації алгоритмів за допомогою системи MATLAB. Навчальний посібник призначений для студентів, аспірантів, а також фахівців у галузі біомедичної електроніки та медичних працівників.The teaching book is devoted to development and research of methods and tools for non-invasive detection of subtle manifistations of heart electrical activity. Particular attention is paid to the improvement of information and algorithmic support of high resolution electrocardiography for early diagnosis of myocardial electrical instability, as well as for the evaluation of the functional state of the fetus during pregnancy examination. The theoretical basis accompanied by the examples of implementation of the discussed algorithms with the help of MATLAB. The teaching book is intended for students, graduate students, as well as specialists in the field of biomedical electronics and medical professionals

Model for educational simulation of the neonatal electrocardiogram

Tese de mestrado. Engenharia Biomédica. Faculdade de Engenharia. Universidade do Porto. 200

Physiological Influences of Active and Passive Acute Mental Stress on Cardiac Repolarization: A Preliminary Investigation into Pathophysiological Mechanisms of Adult Cardiac Arrhythmias

Background: Adult cardiac arrhythmias cause adverse health effects including death. While the underlying mechanisms of arrhythmiogenesis have yet to be elucidated, the cardiac autonomic nervous system (ANS) is suggested to play a notable role. As part of the stress response the cardiac ANS is activated under conditions of acute mental stress, yet, little is known about the cardiac ANS stress response and adult arrhythmiogenesis in acute mental stress conditions. This systematic review offers insight into the influences of acute mental active and passive stress and their potential roles in generating proarrhythmic environments, and provides a primary foundation for future clinical research investigating prospective arrhythmiogenic pathophysiological pathways for the prediction, prevention and treatment of adult arrhythmias. Methods: An extensive literature search was performed by two independent reviewers using Pubmed, PsycINFO, and Scopus electronic databases (up to December 2018). All English language articles which assessed adult cardiac electrophysiological, autonomic, and hemodynamic responses, to acute mental stress conditions were included. Results: Eleven studies were identified; 5 studies included active stress tasks, 3 studies included passive stress tasks, and 3 studies included both active and passive stress tasks. Both active and passive stress were associated with pro-arrhythmic electrocardiographic changes, along with increased hemodynamic and autonomic responses. Conclusions: Active and passive stress create a pro-arrhythmic environment through repolarization alterations, increased sympathetic nervous system activity, and concurrent diminished parasympathetic activity. Further studies should include distinctions between active and passive stress cardiac electrophysiology profiles to better understand how mental stress contributes to cardiac arrhythmia etiology

Case Reports

9th Annual Scientific Meeting of the Indonesian Heart Rhythm Society 2022 Abstracts: Case Report

Advances in Electrocardiograms

Electrocardiograms have become one of the most important, and widely used medical tools for diagnosing diseases such as cardiac arrhythmias, conduction disorders, electrolyte imbalances, hypertension, coronary artery disease and myocardial infarction. This book reviews recent advancements in electrocardiography. The four sections of this volume, Cardiac Arrhythmias, Myocardial Infarction, Autonomic Dysregulation and Cardiotoxicology, provide comprehensive reviews of advancements in the clinical applications of electrocardiograms. This book is replete with diagrams, recordings, flow diagrams and algorithms which demonstrate the possible future direction for applying electrocardiography to evaluating the development and progression of cardiac diseases. The chapters in this book describe a number of unique features of electrocardiograms in adult and pediatric patient populations with predilections for cardiac arrhythmias and other electrical abnormalities associated with hypertension, coronary artery disease, myocardial infarction, sleep apnea syndromes, pericarditides, cardiomyopathies and cardiotoxicities, as well as innovative interpretations of electrocardiograms during exercise testing and electrical pacing